Why the df.columns() and df.index() return Set type? I need know the order of columns and index

cardillo / joinery

Data frames for Java

https://joinery.sh

GNU General Public License v3.0

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Closed chaoxue-sysu closed 2 years ago

chaoxue-sysu commented 2 years ago

The df.columns() and df.index() return Set type, but I need know the order of columns and index.

chaoxue-sysu commented 2 years ago

It uses LinkedHashMap to keep the order of columns and index.